Perhaps you should try some spelling variations:
rand » brand, hand, sand
grand » gbrand, ghand, gsand, grant, brand, grantd, irand, grayd
grandtd » gbrandtd, ghandtd, gsandtd, granttd, brandtd, grantdtd, irandtd, graydtd
band » bond
gsand » sand
drawe » draws, draw, drawn
gran » grant, iran, gray
grain » brain, gbrain, gmain, ggain
graw » grow, raw, draw
brains » brain, grains, trains, bbrains, bmains, bgains
raint » saint, rainy, rains, braint, maint, gaint
trained » tbrained, tmained, tgained
rain » brain, main, gain

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((((rand or band) or (had or land)) or (bank or bonds)) or ((((((gsand or grand) or trained) or grandtd) or drawe) or ((gran OR grain) or graw)) or ((brains or raint) or rain))) counterinsurgency study ;~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((rand OR band) OR (had OR land)) OR (bank OR bonds)) OR ((((((gsand OR grand) OR trained) OR grandtd) OR drawe) OR ((gran OR grain) OR graw)) OR ((brains OR raint) OR rain))) counterinsurgency study ;.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((rand or band) or (had or land)) or (bank or bonds)) or ((((((gsand or grand) or trained) or grandtd) or drawe) or ((gran OR grain) or graw)) or ((brains or raint) or rain))) counterinsurgency study ;".
• Adding a wildcard symbol may retrieve word variants: ((((rand or band) or (had or land)) or (bank or bonds)) or ((((((gsand or grand) or trained) or grandtd) or drawe) or ((gran OR grain) or graw)) or ((brains or raint) or rain))) counterinsurgency study ;*.